CN107134547A - A kind of new type lithium ion battery plastic-aluminum flexible packing film - Google Patents
A kind of new type lithium ion battery plastic-aluminum flexible packing film Download PDFInfo
- Publication number
- CN107134547A CN107134547A CN201710214458.0A CN201710214458A CN107134547A CN 107134547 A CN107134547 A CN 107134547A CN 201710214458 A CN201710214458 A CN 201710214458A CN 107134547 A CN107134547 A CN 107134547A
- Authority
- CN
- China
- Prior art keywords
- plastic
- layer
- flexible packing
- packing film
- aluminum flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 68
- 238000012856 packing Methods 0.000 title claims abstract description 63
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 24
- 229920002635 polyurethane Polymers 0.000 claims abstract description 58
- 239000004814 polyurethane Substances 0.000 claims abstract description 58
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000005030 aluminium foil Substances 0.000 claims abstract description 46
- 239000003973 paint Substances 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 230000004224 protection Effects 0.000 claims abstract description 23
- 229920000642 polymer Polymers 0.000 claims abstract description 18
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 12
- 238000002161 passivation Methods 0.000 claims description 29
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 12
- 239000005025 cast polypropylene Substances 0.000 claims description 11
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 125000002723 alicyclic group Chemical group 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 239000003205 fragrance Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 84
- 229920006015 heat resistant resin Polymers 0.000 abstract description 11
- 239000000178 monomer Substances 0.000 abstract description 7
- 239000004925 Acrylic resin Substances 0.000 abstract description 6
- 229920000178 Acrylic resin Polymers 0.000 abstract description 6
- 239000012752 auxiliary agent Substances 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 239000011229 interlayer Substances 0.000 abstract description 2
- 239000007800 oxidant agent Substances 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 238000001723 curing Methods 0.000 description 22
- 238000002360 preparation method Methods 0.000 description 11
- 238000007711 solidification Methods 0.000 description 11
- 230000008023 solidification Effects 0.000 description 11
- 238000009991 scouring Methods 0.000 description 9
- 238000010030 laminating Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 6
- 229910052753 mercury Inorganic materials 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- -1 hydroxy ester Chemical class 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- TUOBEAZXHLTYLF-UHFFFAOYSA-N [2-(hydroxymethyl)-2-(prop-2-enoyloxymethyl)butyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(CC)COC(=O)C=C TUOBEAZXHLTYLF-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012785 packaging film Substances 0.000 description 2
- 229920006280 packaging film Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical class C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical compound ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 1
- DBYQGTLFSQKPCA-UHFFFAOYSA-N 4-hydroxy-5-methyl-2-propylfuran-3-one Chemical compound CCCC1OC(C)=C(O)C1=O DBYQGTLFSQKPCA-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- AFCIMSXHQSIHQW-UHFFFAOYSA-N [O].[P] Chemical compound [O].[P] AFCIMSXHQSIHQW-UHFFFAOYSA-N 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000007039 two-step reaction Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of lithium ion battery plastic-aluminum flexible packing film; it is sequentially provided with refractory protection, aluminium foil layer, bonding glue-line and thermoplastic resin film layer from outside to inside; the refractory protection is the coating being solidify to form by polyurethane acroleic acid ultraviolet-curing paint through ultraviolet light; wherein, the component and percetage by weight of polyurethane acroleic acid ultraviolet-curing paint are：Polyurethane acroleic acid performed polymer 60wt%~75wt%, activated monomer 20wt%~35wt%, light trigger 3wt%~5wt%, 0.1~1.0wt% of auxiliary agent.The polyurethane acrylic resin layer that the heat-resistant resin layer of the plastic-aluminum flexible packing film of the present invention solidifies for ultraviolet light, directly applies and is formed directly on aluminium foil layer, reduce the use of gluing oxidant layer, the interlayer structure of plastic-aluminum flexible packing film is more simple.
Description
Technical field
The invention belongs to lithium ion battery packing technique field, more particularly to a kind of lithium ion battery plastic-aluminum flexible packing
Film.
Background technology
At present, the plastic-aluminum flexible packing film that lithium ion battery is used is generally by heat-resistant resin layer, adhesive layer, aluminium foil layer, aluminium
Paper tinsel passivation film, adhesive layer or adhering resin layer and thermoplastic resin film layer (hot sealing layer) are constituted.The heat-resistant resin layer of outer layer
Bonded typically by adhesive and be compound to aluminium foil layer, it is mainly played role in decoration, also play a part of to protect aluminium foil layer, it is ensured that aluminium
Layers of foil is not easily broken after cold stamping shaped, while ensureing its waterproof, protection against the tide, paracentesis resistance energy.Heat-resisting tree commonly used in the art
Lipid layer is polyamide or polyester, and the side of aluminium foil is compound to by adhesive, but combination process is complex, and recombination process
High temperature aluminium foil can be made brittle, cause the scouring depth degradation of plastic-aluminum flexible packing film.
Polyurethane acroleic acid ultraviolet-curing paint is pollution-free because of its, is rapidly developed the advantages of efficiency high, mainly
Applied to different fields such as construction material, sports goods, telecommunications, packaging material, automobile components.But plastic-aluminum packaging film exists
Punch forming is needed using process, presently commercially available polyurethane acroleic acid ultraviolet-curing paint molecular weight is relatively low, typically exists
1000 or so, the coating of formation can not meet punch forming requirement, it is impossible to directly apply to the heat-resistant resin layer of aluminum plastic film.
The content of the invention
The present invention provides a kind of lithium ion battery of new structure plastic-aluminum flexible packing film, plastic-aluminum flexible packing membrane structure letter
Single, processing temperature is low, the scouring depth performance of effective guarantee aluminium foil, and simple production process, production efficiency are high, the heat stable resin formed
Layer has excellent wearability, high temperature resistant, cold resistance, organic solvent resistance and good Acclimation temperature ability and appropriate rigidity
With the performance such as hardness.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of lithium ion battery plastic-aluminum flexible packing film, is sequentially provided with refractory protection, aluminium foil layer, bonded adhesives from outside to inside
Layer and thermoplastic resin film layer, the refractory protection are through ultraviolet light solidification shape by polyurethane acroleic acid ultraviolet-curing paint
Into coating, the component and percetage by weight of the polyurethane acroleic acid ultraviolet-curing paint are：
Above-mentioned plastic-aluminum flexible packing film, the polyurethane acroleic acid performed polymer is aromatic urethane acrylate, aliphatic
One kind in urethane acrylate, preferably alicyclic polyether polyurethane-acrylate.
Above-mentioned plastic-aluminum flexible packing film, the molecular weight of the polyurethane acroleic acid performed polymer is 1000~4000, preferably 2000
~3000.
Above-mentioned plastic-aluminum flexible packing film, the thickness of the refractory protection is 10 μm -100 μm, preferably 20 μm -50 μm.
Above-mentioned plastic-aluminum flexible packing film, the aluminium foil layer is dull surface for one side, and another side is passivation film, the passivating film
Layer is between aluminium foil layer and glue line.
Above-mentioned plastic-aluminum flexible packing film, the thickness of the aluminium foil layer is 35 μm~65 μm.
Above-mentioned plastic-aluminum flexible packing film, the passivation film is inorganic passivation layer, organic passivation layer or organic-inorganic passivation layer
In one kind.
Above-mentioned plastic-aluminum flexible packing film, the thickness of the passivation film is 1 μm~2 μm.
Above-mentioned plastic-aluminum flexible packing film, the three-layer co-extruded type cast polypropylene of thermoplastic resin film layer.
Beneficial effect
(1) the polyurethane acrylic resin layer that the heat-resistant resin layer of plastic-aluminum flexible packing film of the invention solidifies for ultraviolet light,
It is formed directly on aluminium foil layer, reduces the use of gluing oxidant layer, the interlayer structure of plastic-aluminum flexible packing film is more simple.
(2) the polyurethane acroleic acid pre-polymerization of specified molecular weight is used in the heat-resistant resin layer of plastic-aluminum flexible packing film of the invention
Body, by the combination matching between each composition, obtained heat-resistant resin layer disclosure satisfy that the requirements of plastic-aluminum flexible packing film.
(3) refractory protection of plastic-aluminum flexible packing film of the invention is polyurethane acrylic resin layer, compared to polyamide
Or the refractory protection of polyester formation, with good chemical proofing and high- and low-temperature resistance performance, preferable impact resistance
Property, there is preferable adhesive force to base materials such as plastics, metals.Polyurethane acrylic resin layer hardness can reach 2H, the stripping with aluminium foil
It is 6-10N/15mm from intensity.
(4) preparation technology of plastic-aluminum flexible packing film of the invention is simple, and processing temperature is low, it is therefore prevented that aluminium foil caused by high temperature
The generation of brittle phenomenon, so as to ensure that plastic-aluminum flexible packing film has good scouring depth performance.
(5) plastic-aluminum flexible packing film preparation process energy consumption of the invention is low, and equipment investment is small.
Brief description of the drawings
Fig. 1 is the schematic diagram of lithium ion battery plastic-aluminum flexible packing film of the present invention,
Each label is expressed as in figure：1- refractory protections, 2- aluminium foil layers, 3- glue lines, 4- thermoplastic resin film layers.
Embodiment
A kind of lithium ion battery plastic-aluminum flexible packing film, it is sequentially provided with refractory protection, aluminium foil layer, bonding from outside to inside
Glue-line and thermoplastic resin film layer, the refractory protection are to be solidified by polyurethane acroleic acid ultraviolet-curing paint through ultraviolet light
The composition and percetage by weight of polyurethane acroleic acid ultraviolet-curing paint are in the coating of formation, the present invention：
Polyurethane acroleic acid performed polymer can form a variety of hydrogen bonds between macromolecular chain, make due to containing ammonia ester bond in molecule
Ultraviolet light solidifying film layer is that formed heat-resistant resin layer has excellent wearability and pliability, and elongation at break is high, simultaneously
There are good chemical proofing and high- and low-temperature resistance performance, preferable impact resistance, have preferably to base materials such as plastics, metals
Adhesive force.The performance requirements of aluminum plastic film heat-resistant resin layer can be met.
Polyurethane acroleic acid performed polymer is one in aromatic urethane acrylate, aliphatic urethane acrylate
Kind.Coating satisfactory mechanical property prepared by aromatic urethane acrylate, cost is relatively low, but weatherability is poor, easily turns yellow；And
Preferably, viscosity is low, but mechanical performance is poor for coating light resistance and weatherability prepared by common aliphatic urethane acrylate.
During cycloaliphatic polyurethane acrylate is a class aliphatic urethane acrylate coating emerging in the last few years, molecular structure
Alicyclic ring belongs to six-membered ring structure, both with higher mechanical performance, there is good yellowing resistance again, so the present invention preferably alicyclic ring
Race's polyether polyurethane-acrylate as polyurethane acroleic acid ultraviolet-curing paint performed polymer.
Polyurethane acroleic acid performed polymer is to be closed with diisocyanate, long chain diol and crylic acid hydroxy ester through two-step reaction
Into.Because raw material there are various structures may be selected, the oligomer of setting performance can be synthesized by MOLECULE DESIGN, by segment
" hard section " is designed with " soft segment ", can adjust the various performances of polyurethane acroleic acid performed polymer molecule.Polyurethane third in the present invention
The molecular weight of olefin(e) acid performed polymer is 1000~4000, and because plastic-aluminum packaging film needs punch forming in use, molecular weight is such as
Fruit is less than 1000, the pliability of formed coating can be caused inadequate, the plastic-aluminum flexible packing film stamping resistance poor performance being made；Point
If son amount is more than 4000, the viscosity of polyurethane acroleic acid performed polymer is excessive, is unfavorable for processing.
Content of the polyurethane acroleic acid performed polymer in polyurethane acroleic acid ultraviolet-curing paint be 60 wt%~
75wt%.Polyurethane acroleic acid performed polymer content is more than 75wt%, and coating hardness declines, elongation at break increase, but stretching is strong
Degree is reduced.After this is due to performed polymer content increase, soft segment proportion increase in coating resin totality, compliance increases
Plus.Reduced yet with activated monomer consumption, for forming cross-bond, the C=C of increase product mechanical strength is also reduced, reduced
Soft segment length increase between crosslink density, each crosslinking points, therefore elongation at break greatly increases, tensile strength significantly drops
It is low.When polyurethane acroleic acid performed polymer content is less than 60wt%, coating hardness increase, elongation at break reduction.So poly- ammonia
Ester acrylate prepolymer content should be in 60wt%~75wt%, the need for could meeting the present invention.
Polyurethane acroleic acid performed polymer is known commercially available prod, e.g., the aromatic series of Zi Cai Chemical Co., Ltd.s of Kaiping City
Urethane acrylate (ZC6203, ZC6438, ZC6408 etc.) and aliphatic urethane acrylate (ZC6523, ZC6523B,
ZC6533, ZC6541 etc.).
Content of the activated monomer in polyurethane acroleic acid ultraviolet-curing paint is 20wt%~35wt%, activated monomer
Lived for the acrylate of hydroxy-functional, including mono-functional reactive's diluent, di-functional reactive's diluent and polyfunctional group
One or more in property diluent, such as 2-hydroxyethyl methacry-late (HEMA), acrylic acid -2- hydroxyl ethyl esters (HEA), methyl
2-hydroxypropyl acrylate (HPMA), 2-hydroxypropyl acrylate (HPA), trimethylolpropane diacrylate (TMPDA), Ji Si
Alcohol triacrylate (PETA) etc..Activated monomer is also known as reactive diluent, and its major function is on the one hand to reduce system viscosity,
The machinability of product is improved, solidification rate is improved；On the other hand crosslinking agent is played, the crosslinking for improving photocuring system is close
Degree, strengthens the compactness of polyurethane acroleic acid ultraviolet curable coating, and then improve polyurethane acroleic acid ultraviolet curable coating
The mechanical performance such as hardness, pliability and wear resistance.Activated monomer is commercially available known products.
Content of the light trigger in polyurethane acroleic acid ultraviolet-curing paint is 3wt%~5wt%, and main function is
Promote the solidification of polyurethane acroleic acid ultraviolet-curing paint.Light trigger is to be commercially for urethane acrylate ultraviolet light
1- hydroxycyclohexyl phenyl ketones (184), the hexichol of the common chemicals of solidification, such as Changxing Chemical Industry Co Ltd
Base-(2,4,6- trimethylbenzoyls) oxygen phosphorus TPO, 2- hydroxy-2-methyl -1- phenyl -1- acetone HMPF (1173), it is double (2,4,
6- trimethylbenzoyls)-phenyl phosphine oxide (898), without specifically limited in the present invention, but need in processing technology time model
Enclose the surface cure and deep cure of interior guarantee coating.Light trigger in the present invention is two or more.
Content of the auxiliary agent in polyurethane acroleic acid ultraviolet-curing paint be 0.1~1.0wt%, preferably 0.3 wt%~
0.8wt%, auxiliary agent is levelling agent and/or defoamer etc., is commercial chemicals, without specifically limited, and main function is to ensure to apply
Cloth quality.Levelling agent be acrylic compounds levelling agent such as rub can chemical industry 1153.Defoamer is Siloxane-Oxyalkylene Copolymers defoamer,
It is preferred that producer is Hubei xinsihai Chemical Co., Ltd. model SH-T115.
The thickness of refractory protection is 10 μm -100 μm, preferably 20 μm -50 μm.If refractory protection thickness is less than 10 μm,
Coating is too thin, and heat-resisting effect is not good, and can not effectively play the effect for protecting aluminium foil not to be scratched；If thickness is more than 100 μm, apply
Layer is too thick, is unfavorable for the punch forming in later stage.The present invention refractory protection realized by ultraviolet light curing mode, processing temperature
It is relatively low, the generation of the brittle phenomenon of aluminium foil will not be caused, it is ensured that aluminium foil has good scouring depth performance, in the work of strong external force
Lithium ion battery can be preferably protected under, the safety coefficient of lithium ion battery is greatly improved.
The refractory protection of the present invention is polyurethane acrylic resin layer, heat-resisting compared to what polyamide or polyester were formed
Protective layer, with good chemical proofing and high- and low-temperature resistance performance, preferable impact resistance, to base materials such as plastics, metals
There is preferable adhesive force.Such as, polyurethane acrylic resin of the invention layer hardness is high, can reach 2H, has well with aluminium foil
Adhesive force, peel strength be 6~10N/15mm.
Aluminium foil layer is one side passivation film in the present invention.The function that the aluminium foil layer of the present invention mainly has is good barrier
Property (gas barrier stops the transmission of oxygen and moisture), excellent processing forming (scouring depth processability) and excellent compound
Property.The thickness of aluminium foil layer is 35 μm~65 μm, and the one side of aluminium foil layer is dull surface, and another side is passivation film, passivating film thickness
Spend for 1 μm~2 μm, passivation film is one kind in inorganic passivation layer, organic passivation layer or organic-inorganic passivation layer.
Glue line in the present invention is polyolefin modified adhesive, and NS-2311C is spun selected from Japan.
Thermoplastic resin layer (i.e. hot sealing layer) is three-layer co-extruded type cast polypropylene in the present invention.Due to lithium ion battery
Service life and shelf life are longer, so the requirement to the plastic-aluminum flexible packing film of outer packing is higher, especially inner layer material,
Ask it：1), with good electrolyte resistance and hf resi stant performance；2), good punch forming performance, the friction system of innermost layer material
Number is appropriate, keeps the progress that can smoothly stablize when battery production；3), heat sealability will get well, and can keep heat-sealing
Intensity stabilization；4) must there are splendid insulating properties and good resistance to puncture performance.To prevent electrode and lithium ion battery flexible package
Short circuit between material, thermoplastic resin layer is three-layer co-extruded type cast polypropylene.The thickness of thermoplastic resin layer be 20 μm~
100μm。
The preparation method of polyurethane acroleic acid ultraviolet-curing paint；
According to formula, polyurethane acroleic acid performed polymer, activated monomer, light trigger, auxiliary agent are added into reactor stirring equal
It is even, polyurethane acroleic acid ultraviolet-curing paint is made.
The preparation method of plastic-aluminum flexible packing film
The polyurethane acroleic acid ultraviolet-curing paint of preparation is coated on aluminium using the usual manner such as blade coating or spraying
On the dull surface of layers of foil, coating is subjected to ultraviolet light solidification；Then the passivation film of aluminium foil and thermoplastic resin layer are passed through into glue
Glutinous agent carries out dry laminating, obtains lithium ion battery plastic-aluminum flexible packing film.
Below with reference to embodiment, the present invention is further elaborated with.
Embodiment 1
The component of polyurethane acroleic acid ultraviolet-curing paint is：
The preparation of plastic-aluminum flexible packing film：
(dull surface) is coated with 100 μm of above-mentioned polyurethane acroleic acid ultraviolet curable coating on 35 μm of aluminium foil,
After the lower irradiation solidification such as 1000W mercury arc, by 100 μm of individual layer cast polypropylene by adhesive dry laminating having in aluminium foil
Machine passivation film (thickness is 1 μm) face, obtains lithium ion battery plastic-aluminum flexible packing film.
Embodiment 2
The component of polyurethane acroleic acid ultraviolet-curing paint is：
The preparation of plastic-aluminum flexible packing film：
(dull surface) is coated with 80 μm of above-mentioned polyurethane acroleic acid ultraviolet curable coating on 55 μm of aluminium foil,
After the lower irradiation solidification such as 1000W mercury arc, by 60 μm of three-layer co-extruded cast polypropylene by adhesive dry laminating in aluminium foil
Inorganic passivation film (thickness be 1 μm) face, obtain lithium ion battery plastic-aluminum flexible packing film.
Embodiment 3
The component of polyurethane acroleic acid ultraviolet-curing paint is：
The preparation of plastic-aluminum flexible packing film：
(dull surface) is coated with 70 μm of above-mentioned polyurethane acroleic acid ultraviolet curable coating on 50 μm of aluminium foil,
After the lower irradiation solidification such as 1000W mercury arc, by 50 μm of three-layer co-extruded cast polypropylene by adhesive dry laminating in aluminium foil
Passivation film (thickness be 2 μm) face, obtain lithium ion battery plastic-aluminum flexible packing film.
Embodiment 4
The component of polyurethane acroleic acid ultraviolet-curing paint is：
The preparation of plastic-aluminum flexible packing film：
(dull surface) is coated with 50 μm of above-mentioned polyurethane acroleic acid ultraviolet curable coating on 60 μm of aluminium foil,
After the lower irradiation solidification such as 1000W mercury arc, by 30 μm of individual layer cast polypropylene by adhesive dry laminating having in aluminium foil
Machine passivation film (thickness is 2 μm) face, obtains lithium ion battery plastic-aluminum flexible packing film.
Embodiment 5
The component of polyurethane acroleic acid ultraviolet-curing paint is：
The preparation of plastic-aluminum flexible packing film：
(dull surface) is coated with 30 μm of above-mentioned polyurethane acroleic acid ultraviolet curable coating on 40 μm of aluminium foil,
After the lower irradiation solidification such as 1000W mercury arc, by 40 μm of three-layer co-extruded cast polypropylene by adhesive dry laminating in aluminium foil
Organic passivation film layer (thickness be 2 μm) face, obtain lithium ion battery plastic-aluminum flexible packing film.
Embodiment 6
The component of polyurethane acroleic acid ultraviolet-curing paint is：
The preparation of plastic-aluminum flexible packing film：
(dull surface) is coated with 10 μm of above-mentioned polyurethane acroleic acid ultraviolet curable coating on 65 μm of aluminium foil,
After the lower irradiation solidification such as 1000W mercury arc, by 20 μm of three-layer co-extruded cast polypropylene by adhesive dry laminating in aluminium foil
Organic-inorganic passivation film (thickness be 2 μm) face, obtain lithium ion battery plastic-aluminum flexible packing film.
Comparative example chooses the commercially available C of Japanese Showa4- 480 111 μm of plastic-aluminum flexible packing films, structure is refractory protection/glue
1/ passivation layer of the adhensive layer/aluminium foil/hot sealing layer of passivation layer/adhesive layer 2/, wherein refractory protection are 25 μm of biaxial tension Buddhist nun
Imperial film, the thickness of adhesive layer 1 is 4 μm, and the thickness of aluminium foil is 40 μm, and the thickness of adhesive layer 2 is 2 μm, and hot sealing layer is 40 μm
Cast polypropylene.
The performance detection of plastic-aluminum flexible packing film predominantly detects the scratch resistance of the heat-resistant resin layer of plastic-aluminum flexible packing film outer layer
Can, with the adhesion strength of aluminium foil and apparent after mould scouring depth.
Detection method is：
1) scratch resistance is detected：Use #0000 steel wools (Japanese steel wool company (Japanese ス チ ー ル ウ ー Le) is made)
Apply 150g/cm2Load while, in the heat stable resin layer surface double rubs 10 times of plastic-aluminum flexible packing film, pass through and judge
The depth of the cut on top layer evaluate it is excellent with it is bad." excellent "：The scratch depth of base protection layer surface is less than 1 μm." bad "：Base material
The scratch depth of protective layer is more than 1 μm.
2) peel strength with aluminium foil is carried out with reference to GB/T8808-1999；
3) apparent after mould scouring depth, scouring depth condition is as follows
Scouring depth mould：Corner R angles, vertical R angles >=1mm, die clearance=0.25~0.35mm (about 2 times of thickness), mould
Has surface roughness=3.2s (Ra=0.8 μm)
Rush shell condition：Face pressure=0.3~0.5Mpa,
Criterion：Whether observation is rushed at the heat-resistant resin layer chamfering of plastic-aluminum flexible packing film after shell produces failure crack and turns white
It is excellent：Without failure crack and turn white
In：Turn white
It is bad：Failure crack
Testing result is shown in Table 1.
The embodiment of table 1 and comparative example testing result
In summary, the every test data of table 1 is seen, UV light solidifying polyurethane acrylic acid resinous coat substitution of the invention
Traditional polyamide or polyester refractory protection, can meet lithium ion battery plastic-aluminum flexible packing film to each of refractory protection
Item is required, while the method solidified using ultraviolet light can effectively reduce energy resource consumption and cost, the new type lithium ion generated
Battery meets use requirement with plastic-aluminum flexible packing film.
Claims (9)
1. a kind of lithium ion battery plastic-aluminum flexible packing film, it is sequentially provided with refractory protection, aluminium foil layer, bonded adhesives from outside to inside
Layer and thermoplastic resin film layer, it is characterised in that the refractory protection is passed through by polyurethane acroleic acid ultraviolet-curing paint
The coating that ultraviolet light is solidify to form, the component and percetage by weight of the polyurethane acroleic acid ultraviolet-curing paint are：
2. plastic-aluminum flexible packing film according to claim 1, it is characterised in that the polyurethane acroleic acid performed polymer is fragrance
One kind in adoption urethane acrylate, aliphatic urethane acrylate, preferably alicyclic polyether polyurethane-acrylate.
3. plastic-aluminum flexible packing film according to claim 2, it is characterised in that the molecule of the polyurethane acroleic acid performed polymer
Measure as 2000~5000, preferably 3000~4000.
4. plastic-aluminum flexible packing film according to claim 3, it is characterised in that the thickness of the refractory protection is 10 μm-
100 μm, preferably 20 μm -50 μm.
5. plastic-aluminum flexible packing film according to claim 1, it is characterised in that the aluminium foil layer is dull surface for one side, separately
It is simultaneously passivation film, the passivation film is between aluminium foil layer and glue line.
6. plastic-aluminum flexible packing film according to claim 5, it is characterised in that the thickness of the aluminium foil layer is 35 μm~65 μ
m。
7. plastic-aluminum flexible packing film according to claim 6, it is characterised in that the passivation film is inorganic passivation layer, had
One kind in machine passivation layer or organic-inorganic passivation layer.
8. plastic-aluminum flexible packing film according to claim 7, it is characterised in that the thickness of the passivation film is 1 μm~2 μ
m。
9. plastic-aluminum flexible packing film according to claim 8, it is characterised in that the thermoplastic resin film layer is three-layer co-extruded
Type cast polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214458.0A CN107134547B (en) | 2017-04-01 | 2017-04-01 | Novel aluminum-plastic flexible packaging film for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214458.0A CN107134547B (en) | 2017-04-01 | 2017-04-01 | Novel aluminum-plastic flexible packaging film for lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107134547A true CN107134547A (en) | 2017-09-05 |
| CN107134547B CN107134547B (en) | 2020-05-19 |
Family
ID=59715987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710214458.0A Active CN107134547B (en) | 2017-04-01 | 2017-04-01 | Novel aluminum-plastic flexible packaging film for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107134547B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331967A (en) * | 2020-03-27 | 2020-06-26 | 安徽捷诚包装制品有限公司 | Corrosion-resistant flexible packaging film and processing technology thereof |
| CN111463372A (en) * | 2020-05-08 | 2020-07-28 | 浙江道明光电科技有限公司 | Battery packaging film and preparation process thereof |
| CN113755090A (en) * | 2021-08-11 | 2021-12-07 | 东南大学 | Preparation method of plastic packaging film |
| US20220123406A1 (en) * | 2019-09-19 | 2022-04-21 | Contemporary Amperex Technology Co., Limited | Case, secondary battery, battery pack, vehicle, and method for manufacturing secondary battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487033A (en) * | 2002-08-07 | 2004-04-07 | 珠海东诚化工有限公司 | Ultraviolet ray cured paint for surface treatment or alumium ou aluminium sections |
| CN102719188A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydrophilic aluminum foil coating with integrated bottom and top and preparation method thereof |
| KR20150050081A (en) * | 2013-10-31 | 2015-05-08 | 주식회사 엘지화학 | Waterproof layer coated pouch type secondary battery and method for fabricating thereof |
| CN106207019A (en) * | 2016-08-26 | 2016-12-07 | 上海紫江新材料科技有限公司 | Surface has lithium battery flexible packaging film and the preparation thereof of electrolyte resistance polyester layer |
-
2017
- 2017-04-01 CN CN201710214458.0A patent/CN107134547B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487033A (en) * | 2002-08-07 | 2004-04-07 | 珠海东诚化工有限公司 | Ultraviolet ray cured paint for surface treatment or alumium ou aluminium sections |
| CN102719188A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydrophilic aluminum foil coating with integrated bottom and top and preparation method thereof |
| KR20150050081A (en) * | 2013-10-31 | 2015-05-08 | 주식회사 엘지화학 | Waterproof layer coated pouch type secondary battery and method for fabricating thereof |
| CN106207019A (en) * | 2016-08-26 | 2016-12-07 | 上海紫江新材料科技有限公司 | Surface has lithium battery flexible packaging film and the preparation thereof of electrolyte resistance polyester layer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220123406A1 (en) * | 2019-09-19 | 2022-04-21 | Contemporary Amperex Technology Co., Limited | Case, secondary battery, battery pack, vehicle, and method for manufacturing secondary battery |
| CN111331967A (en) * | 2020-03-27 | 2020-06-26 | 安徽捷诚包装制品有限公司 | Corrosion-resistant flexible packaging film and processing technology thereof |
| CN111463372A (en) * | 2020-05-08 | 2020-07-28 | 浙江道明光电科技有限公司 | Battery packaging film and preparation process thereof |
| CN111463372B (en) * | 2020-05-08 | 2022-11-29 | 浙江道明光电科技有限公司 | Battery packaging film and preparation process thereof |
| CN113755090A (en) * | 2021-08-11 | 2021-12-07 | 东南大学 | Preparation method of plastic packaging film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107134547B (en) | 2020-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107134547A (en) | A kind of new type lithium ion battery plastic-aluminum flexible packing film | |
| KR101717405B1 (en) | Cell packing material and method for manufacturing the same | |
| CN107425147A (en) | Packaging material for aluminum plastic film of lithium battery | |
| CN105794012B (en) | Battery use packing material | |
| EP3628717B1 (en) | Adhesive, laminate, packaging material for battery casing, battery case, and method for manufacturing battery case | |
| CN111688325B (en) | Preparation method of aluminum-plastic composite film | |
| KR102344139B1 (en) | Adhesive, laminate using same, battery exterior material, battery case, and manufacturing method thereof | |
| JPWO2007119791A1 (en) | Gas barrier film | |
| CN101203537A (en) | Active energy ray-curable resin composition and article and molded product using the same | |
| WO2017134931A1 (en) | Adhesive for laminate of metal foil and resin film, laminated body, battery exterior packaging material, and battery case and manufacturing method therefor | |
| JP6766985B2 (en) | Exterior materials for power storage devices, manufacturing methods for exterior materials for power storage devices, and power storage devices | |
| CN106104843A (en) | Lithium battery encapsulating material | |
| CN207199677U (en) | A kind of new type lithium ion battery plastic-aluminum flexible packing film | |
| CN102358068B (en) | Barrier layer soft package film of polymer lithium ion battery | |
| CN110746908B (en) | Dual-curing adhesive composition containing modified polyolefin | |
| JP2010111819A (en) | Composition for forming gas barrier film, gas barrier laminate and molded item using the same | |
| CN110077091B (en) | Preparation method of aluminum-plastic composite film | |
| CN116476496B (en) | High-barrier crease-resistant PP (Polypropylene) isolating film | |
| JP2011183561A (en) | Film for film insert | |
| JP2009208307A (en) | Release paper for prepreg | |
| KR102225756B1 (en) | Method of applying polyurea, metal pipe, metal panel, and connection part for connecting pipe applied with the same | |
| JP7247495B2 (en) | Exterior material for power storage device, method for manufacturing exterior material for power storage device, and power storage device | |
| CN111016335A (en) | PBT aluminum-plastic composite film and production process thereof | |
| CN106463652A (en) | Outer package material for power storage device | |
| CN115926658B (en) | Environment-friendly transparent self-adhesive film and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 072150 No. 6, Jianye Road, Mancheng Economic Development Zone, Mancheng District, Baoding City, Hebei Province Patentee after: LUCKY FILM Co.,Ltd. Address before: 071054, 6 Kennan Avenue, Baoding, Hebei Patentee before: LUCKY FILM Co.,Ltd. |